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This section includes 2 Mcqs, each offering curated multiple-choice questions to sharpen your Javascript knowledge and support exam preparation. Choose a topic below to get started.
1. |
The main difference between the variables declared with var and with let is __________ |
A. | var is confined to a particular function but let is not |
B. | let is confined to a particular function but var is not |
C. | var defines values based on conditions but let does not |
D. | let doesn’t let you change the value of the variable |
Answer» B. let is confined to a particular function but var is not | |
2. |
The let keyword can be used ___________ |
A. | as a substitute of var |
B. | as a block statement to define new variables |
C. | to define variables that are scoped to a single expression |
D. | all of the mentioned |
Answer» C. to define variables that are scoped to a single expression | |